AU635206B2 - Fm reception unit - Google Patents

Fm reception unit Download PDF

Info

Publication number
AU635206B2
AU635206B2 AU36920/89A AU3692089A AU635206B2 AU 635206 B2 AU635206 B2 AU 635206B2 AU 36920/89 A AU36920/89 A AU 36920/89A AU 3692089 A AU3692089 A AU 3692089A AU 635206 B2 AU635206 B2 AU 635206B2
Authority
AU
Australia
Prior art keywords
signal
circuit
unit
switching
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
AU36920/89A
Other languages
English (en)
Other versions
AU3692089A (en
Inventor
Jens Hansen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HuC Elektronik GmbH
Original Assignee
HuC Elektronik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6355680&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU635206(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by HuC Elektronik GmbH filed Critical HuC Elektronik GmbH
Publication of AU3692089A publication Critical patent/AU3692089A/en
Application granted granted Critical
Publication of AU635206B2 publication Critical patent/AU635206B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/001—Details of arrangements applicable to more than one type of frequency demodulator
    • H03D3/003—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback
    • H03D3/005—Arrangements for reducing frequency deviation, e.g. by negative frequency feedback wherein the demodulated signal is used for controlling a bandpass filter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
    • H04B1/1669—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels of the demodulated composite stereo signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Silicon Polymers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Superheterodyne Receivers (AREA)
AU36920/89A 1988-05-30 1989-05-30 Fm reception unit Ceased AU635206B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3818752 1988-05-30
DE3818752A DE3818752A1 (de) 1988-05-30 1988-05-30 Fm-empfangsteil

Publications (2)

Publication Number Publication Date
AU3692089A AU3692089A (en) 1990-01-05
AU635206B2 true AU635206B2 (en) 1993-03-18

Family

ID=6355680

Family Applications (1)

Application Number Title Priority Date Filing Date
AU36920/89A Ceased AU635206B2 (en) 1988-05-30 1989-05-30 Fm reception unit

Country Status (11)

Country Link
US (1) US5251332A (de)
EP (1) EP0417148B1 (de)
JP (1) JPH03504672A (de)
AT (1) ATE100650T1 (de)
AU (1) AU635206B2 (de)
BR (1) BR8907460A (de)
DE (2) DE3818752A1 (de)
FI (1) FI905850A0 (de)
MY (1) MY105250A (de)
PT (1) PT90679B (de)
WO (1) WO1989012357A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993015568A1 (de) * 1992-01-27 1993-08-05 H.U.C. Elektronik Gmbh Verfahren zur erzeugung eines nachbarkanalstörungen anzeigenden signals
DE4235852A1 (de) * 1992-10-23 1994-04-28 Thomson Brandt Gmbh Verfahren und Vorrichtung zur Steuerung der Störfestigkeit bei einem Empfangsgerät
US6313620B1 (en) 1995-09-14 2001-11-06 Northrop Grumman Corporation Detector system for identifying the frequency of a received signal useful in a channelized receiver
SE521875C2 (sv) 1998-12-23 2003-12-16 Ericsson Telefon Ab L M Förfarande och anordning i ett radiokommunikationssystem
US7877290B1 (en) 1999-03-29 2011-01-25 The Directv Group, Inc. System and method for transmitting, receiving and displaying advertisements
US7552458B1 (en) * 1999-03-29 2009-06-23 The Directv Group, Inc. Method and apparatus for transmission receipt and display of advertisements
US7085529B1 (en) 2001-10-24 2006-08-01 The Directv Group, Inc. Method and apparatus for determining a direct-to-home satellite receiver multi-switch type
US20060203946A1 (en) * 2005-03-11 2006-09-14 Lockheed Martin Corporation Channelized receiver system with architecture for signal detection and discrimination
US8775319B2 (en) 2006-05-15 2014-07-08 The Directv Group, Inc. Secure content transfer systems and methods to operate the same
FR2944929B1 (fr) * 2009-04-23 2016-06-24 Continental Automotive France Systeme a interface numerique pour la reception et le traitement numerique de signaux radiofrequence et procede associe
US8634793B2 (en) * 2010-05-10 2014-01-21 Csr Technology Inc. IP2 calibration measurement and signal generation
US8687947B2 (en) 2012-02-20 2014-04-01 Rr Donnelley & Sons Company Systems and methods for variable video production, distribution and presentation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157455A (en) * 1976-07-14 1979-06-05 Pioneer Electronic Corporation FM stereophonic receiver having muting and mode changing
AU545262B2 (en) * 1980-09-16 1985-07-04 Thomson-Csf Fm demodulation with adjustable bandage filter
AU4962885A (en) * 1984-10-16 1986-05-02 H.U.C. Elektronik Hansen & Co. Process and circuit arrangement for converting frequency- modulated signals through at least one intermediate frequency into low-frequency signals

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL67099C (de) * 1940-06-29
US3231822A (en) * 1961-12-22 1966-01-25 Bell Telephone Labor Inc Frequency modulation feedback receiver
JPS52119108A (en) * 1976-03-31 1977-10-06 Sansui Electric Co Muutuning device
US4081771A (en) * 1976-12-06 1978-03-28 Zenith Radio Corporation 82 Detent manual varactor tuning system
US4192970A (en) * 1977-01-31 1980-03-11 Kahn Leonard R Reduction of adjacent channel interference
US4356567A (en) * 1977-06-28 1982-10-26 Pioneer Electronic Corporation Radio receiver with bandwidth switching
JPS5828968B2 (ja) * 1977-08-31 1983-06-20 ソニー株式会社 Ｐｌｌ方式周波数シンセサイザチュ−ナ
US4267605A (en) * 1979-02-26 1981-05-12 Trio Kabushiki Kaisha Interference eliminator in communication receiver
DE2929647A1 (de) * 1979-07-21 1981-02-12 Blaupunkt Werke Gmbh Ukw-stero-empfaenger
US4352208A (en) * 1980-03-04 1982-09-28 Motorola, Inc. Automatic IF selectivity for radio receiver system
US4385402A (en) * 1980-04-16 1983-05-24 Redifon Telecommunications Limited Switchable filter circuits
JPS5733834A (en) * 1980-08-07 1982-02-24 Clarion Co Ltd Frequency modulation noise reducing circuit
DE3048263A1 (de) * 1980-12-20 1982-07-29 Blaupunkt-Werke Gmbh, 3200 Hildesheim Rundfunkempfangsgeraet
CA1190289A (en) * 1981-04-28 1985-07-09 Nippon Hoso Kyokai Fm signal demodulation system
US4388731A (en) * 1981-07-01 1983-06-14 Rockwell International Corporation Receiver with squelch for offset carrier environment
WO1983000973A1 (fr) 1981-08-31 1983-03-17 Ohta, Tomozo Systeme demodulateur fm de sensibilite elevee
DE3137843A1 (de) * 1981-09-23 1983-03-31 Robert Bosch Gmbh, 7000 Stuttgart Filter- und demodulationsschaltung
US4406019A (en) * 1981-11-16 1983-09-20 The Bendix Corporation Selectivity means in amplitude modulated radio receivers
EP0089853B1 (de) * 1982-03-23 1987-04-01 Nec Corporation Störwellendetektorschaltung zur Anwendung in einem Radioempfänger
JPS59185433A (ja) * 1983-04-06 1984-10-22 Trio Kenwood Corp Ａｍ受信機
US4654884A (en) * 1984-05-10 1987-03-31 Alps Electric Co., Ltd. Radio receiver with switching circuit for elimination of intermodulation interference
JPS6172418A (ja) * 1984-09-17 1986-04-14 Alps Electric Co Ltd 衛星放送用受信機
JPH0746780B2 (ja) * 1985-01-31 1995-05-17 松下電器産業株式会社 ラジオ受信機
US4812851A (en) * 1985-10-31 1989-03-14 Digital Marine Electronics Corporation Radio receiver with automatic interference cancellation
US4761829A (en) * 1985-11-27 1988-08-02 Motorola Inc. Adaptive signal strength and/or ambient noise driven audio shaping system
DE3724604A1 (de) * 1987-04-15 1988-12-01 H U C Elektronik Gmbh Anordnung zum filtern eines fm-ukw-empfangssignals

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4157455A (en) * 1976-07-14 1979-06-05 Pioneer Electronic Corporation FM stereophonic receiver having muting and mode changing
AU545262B2 (en) * 1980-09-16 1985-07-04 Thomson-Csf Fm demodulation with adjustable bandage filter
AU4962885A (en) * 1984-10-16 1986-05-02 H.U.C. Elektronik Hansen & Co. Process and circuit arrangement for converting frequency- modulated signals through at least one intermediate frequency into low-frequency signals

Also Published As

Publication number Publication date
EP0417148B1 (de) 1994-01-19
EP0417148A1 (de) 1991-03-20
FI905850A0 (fi) 1990-11-28
WO1989012357A1 (en) 1989-12-14
BR8907460A (pt) 1991-04-02
US5251332A (en) 1993-10-05
PT90679B (pt) 1995-03-31
DE3818752A1 (de) 1989-12-07
MY105250A (en) 1994-09-30
PT90679A (pt) 1989-11-30
ATE100650T1 (de) 1994-02-15
DE58906783D1 (de) 1994-03-03
AU3692089A (en) 1990-01-05
JPH03504672A (ja) 1991-10-09

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